Microsemi Corp. Bipolar Transistors - BJT JANS2N2904A/TR

The JANS2N2904A/TR is a PNP silicon switching transistor in a hermetically sealed TO-5 package, qualified to the JANS level per MIL-PRF-19500/290 for high-reliability military applications. It has a collector-emitter voltage rating of 60 V, collector-base voltage of 60 V, emitter-base voltage of 5.0 V, and a maximum collector current of 600 mA. Power dissipation is rated at 0.3 W at 25 °C ambient temperature, with thermal resistance junction-to-ambient of 195 °C/W and junction-to-case of 50 °C/W. Operating and storage junction temperatures range from -65 °C to +200 °C. The package features a kovar base, nickel-plated leads with solder dip finish, and weighs approximately 1.064 grams. It meets MIL-PRF-19500/290 qualification standards and is available in RoHS-compliant versions, though this specific variant is not indicated as RoHS compliant.